This is a Set question since multiple answers can resolve as YES. You can also make negative answers: e.g. 500-, which would resolve YES if my prediction streak is less than or equal to 500. You can also make specific ranges, or even zero in on an exact number.

On my end, I will do my best to keep my streak going for as long as I can.

The end date will be extended as long as necessary.

Edit: To clarify, ranges, pluses, and minuses will be inclusive. For example, 500- and 500+ and 100-500 and 500-1000 would all resolve YES if my streak ends at 500.